Improvement in valves for steam and other enginery



ate-ut @time were sa?,

PAUL H. KENDRICKEN,OF BOSTON, MASSACHUSETTS.

Letters Patent No. 85,389-, (lated December 25|, 1868.

The Schedule referred to inmtlese Letters Patent and making part of the same.

To all to whom these 'presents shall come Beit known that I, PAUL H. KnNDIucKnN, of Boston, in the county of Suffolk, and State of Massachusetts, have made an invention of a new and useful Valve for Regulating the Flow of Steam, Vater, Src.; and do hereby declare the ibliowing to be a full, clear, and exact description thereof, due reference being had to the accompanying drawings, making part of this specication, and in which-'- Figures l and 2 are vertical sections of a valve constructed as contemplated by my invention.

Figure 3 is a side elevation of the two valves and their adjuncts removed from the valve.

Figure 4 is a horizontal section of the entire valve.

This invention relates to means for simultaneously closing the entrance and exit ofa liquid gas or steam, and etecting this by the employment of onevalvestem, in order that a person, in actuating-one valve, shall of necessity actuate both the inventions, besides numerous instances of useful application, being especially valuable in its application to steam-radiators, to obviate the evil now very common of'closing the exit or port, and leaving the entrance-port open;

The invention consists in the peculiar combination and arrangement of the entrance and'eXit-ports, and two Valves applied thereto, and connected together, so as to be operated by one stem, in such manner that, upon turning the stem in one direction, both valves are closed upon their seats, and yvice tersa, both valves being opened, a collar` being applied to the stem of one valve, and between the two, so as to prevent `flow of steam from one portion of the valve to the other, the whole being substantially as hereinafter explained.

In the drawings above mentioned as accompanying this speciiication and illustrating my invention, A denotes the body of the valve, the f'our quarters of such body, from its centre, being exact counterparts of each other, the valve-chamber being shown at B.

Upon opposite sides ofthe body of the valve are two openings or passages, a a', one being the induction and the other the eduction-port, such ports .communicating with the valve-chamber B by a passage or port, b or lf, communication between the two passages a a being entirely closed.

Furthermore, two additional ports or passages, ol or c', lead out of the valve-chamber B, and upon opposite sides thereof, the latter ports or passages communieating with two orifices or short pipes, (l (l, made in thel lower part of the body of the valve, upon opposite sides thereofsuch openings, cl and d', being continuations of the induction and eduction-passages a c before mentioned.

The pipes d d are to be provided with screws for connecting them with the extreme ends of a steam-radiating coil, or any conduit or object containing steam, Water, Sac., the flow of which it is desired. to control.

Within the valve-case A are two valves, C or the seats ofthe valves being shown at c e as disposed hetween the passages b or b and ports o or e', respectivel The stems of the valves are shown at f f', one of them being triangular, and sliding in a similar-shaped recess, h, formed in a nut, t', screwed into the'body of thevalve, as shown in the drawings. This shape of the valve-stem allows rectilinear movements of the valve, but preventing -rotary movement of the same.

The stem of the opposite valve, which is cylindrical,

has a male screw formed upon it, which screws into the first-mentioned valve-stem, a collar, on,being formed upon the stem j, and so disposed thereon as to remain midway between the ports b b' and c c', when'the valves are open upon their seats, such collars, as before mentioned, serving, undersuch circumstances, to shut oli communication between the induction and cductionportions of the valve.

When the val ves are open and steam passing through the valve-chamber B, thisl collar is moved away from between the said ports by the action of its valve-stern, anda free circulation of steam through the entire valve permitted.

The cylindrical valve-stem f has a stuliing-hox, l, properly applied to it, and to its, outer end a handwheel is aliixed in the ordinary manner.

From the above description of the construction of lny invention, it will be seen that upon turning the valve-stem j' in one direction, that is, to the right, (as under the construction shown in the accompanying drawings,) the two valves will be caused to approach each other and closev upon their seats, thus simultaneously and eiectually cutting off both entrance and exit of steam.

Upon turning the'valve-stem f in the opposite directionto that last mentioned, the induction and eductionpassages or ports are opened simultaneously, and ilow through thc valve permitted.

It will be seen that by the employment of my inven- -tion n o person, however ignorant or careless he may he, can do otherwise than open and close both entrance and exit of the valve at once.. l

The importance of the invention will readily manifest itself to persons accustomed to the use of steam.

' Then the valves G and C are both closed upon their seats, the collar is in such a position as to allow a free circulation ot' steam throughout the entire device, and keep back return-water from the radiator.

I claim as my inventionv l. 4The arrangement of Athe ports or passages a, e', b b, c e', and pipes (Zd,wl1en combined with the valves C 'and 0 and the valve-chamber B, substantially as herein shown and described.

2. rlhe arrangement ofthe valves C and C', stems f f,'

and valve-seats c', substantially .as shown and speciiied.

3. In combination with the ports or openings a a', b b', c c', and (l d', and valve and valve-seats O Cand e e', the interposed collar or abutment m, substantially as shown and set forth.

PAUL H. KENDRIOKEN. Witnesses:

FRED. CURTIS,

EDWARD GRIFFITH. 

